{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T19:18:57Z","timestamp":1762543137460,"version":"build-2065373602"},"reference-count":33,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2019,11,28]],"date-time":"2019-11-28T00:00:00Z","timestamp":1574899200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>The purpose of this research is to evaluate a transcritical heat-driven compression refrigeration machine with CO2 as the working fluid from thermodynamic and economic viewpoints. Particular attention was paid to air-conditioning applications under hot climatic conditions. The system was simulated by Aspen HYSYS\u00ae (AspenTech, Bedford, MA, USA) and optimized by automation based on a genetic algorithm for achieving the highest exergetic efficiency. In the case of producing only refrigeration, the scenario with the ambient temperature of 35 \u00b0C and the evaporation temperature of 5 \u00b0C showed the best performance with 4.7% exergetic efficiency, while the exergetic efficiency can be improved to 22% by operating the system at the ambient temperature of 45 \u00b0C and the evaporation temperature of 5 \u00b0C if the available heating capacity within the gas cooler is utilized (cogeneration operation conditions). Besides, an economic analysis based on the total revenue requirement method was given in detail.<\/jats:p>","DOI":"10.3390\/e21121164","type":"journal-article","created":{"date-parts":[[2019,11,28]],"date-time":"2019-11-28T10:54:10Z","timestamp":1574938450000},"page":"1164","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Exergetic and Economic Evaluation of a Transcritical Heat-Driven Compression Refrigeration System with CO2 as the Working Fluid under Hot Climatic Conditions"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4473-0497","authenticated-orcid":false,"given":"Jing","family":"Luo","sequence":"first","affiliation":[{"name":"Institute for Energy Engineering, Technische Universit\u00e4t Berlin, Marchstr. 18, 10587 Berlin, Germany"}]},{"given":"Tatiana","family":"Morosuk","sequence":"additional","affiliation":[{"name":"Institute for Energy Engineering, Technische Universit\u00e4t Berlin, Marchstr. 18, 10587 Berlin, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9633-2960","authenticated-orcid":false,"given":"George","family":"Tsatsaronis","sequence":"additional","affiliation":[{"name":"Institute for Energy Engineering, Technische Universit\u00e4t Berlin, Marchstr. 18, 10587 Berlin, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9424-5185","authenticated-orcid":false,"given":"Bourhan","family":"Tashtoush","sequence":"additional","affiliation":[{"name":"Mechanical Engineering Department, Jordan University of Science and Technology, Ar Ramtha 3030, Jordan"}]}],"member":"1968","published-online":{"date-parts":[[2019,11,28]]},"reference":[{"key":"ref_1","unstructured":"Rosenfeld, L.M., and Tkachev, A.G. 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